The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 04, 1981
Filed:
May. 09, 1980
Applicant:
Inventors:
B Richard Vogt, Yardley, PA (US);
Ligaya G Magbanua, Allentown, NJ (US);
Assignee:
E. R. Squibb & Sons, Inc., Princeton, NJ (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61K / ; C07D / ;
U.S. Cl.
CPC ...
424251 ; 544250 ;
Abstract
Compounds are provided having the structure ##STR1## wherein R.sup.1 is hydrogen or lower alkyl of 1-3 carbons, R.sup.2 is carboxyl, hydroxymethyl, lower alkanoyloxymethyl, or lower alkoxycarbonyl, R.sup.3 is hydrogen, lower alkyl or benzyl, and R.sup.4 and R.sup.5 are the same or different and represent hydrogen, lower alkyl, lower alkoxy, alkanoyloxy, benzyloxy, hydroxy, halogen (Cl, Br and F), nitro, and trifluoromethyl. These compounds are useful as anti-allergics when administered parenterally or by insufflation but have poor activity when administered orally.